Table II.

Association between clinicopathological features of esophageal squamous cell carcinoma and YAP expression in tumor tissues.

	YAP expression
Clinicopathological features	Low, n=65	Over, n=42	P-valuea
Age
<60	28	22	0.428
≥60	37	20
Sex
Male	51	36	0.449
Female	14	6
Smoking
No	34	19	0.554
Yes	31	23
Drinking
No	35	23	0.926
Yes	30	19
Differentiation
Well	18	9	0.146
Moderate	36	19
Poor	11	14
T stage
T1-2	31	15	0.238
T3-4	34	27
N stage
N0	40	16	0.029b
N1-3	25	26
pTNM
I–II	42	19	0.071
III	23	23
Adjuvant treatment
None	35	28	0.417
Radiotherapy	13	4
Chemotherapy	5	4
CRT	12	6

^aχ² test.

^bP<0.05. CRT, radiochemotherapy; T stage, invasion depth; N stage, lymph node metastasis; pTNM, pathological TNM.